It was pretty much exactly what I was expecting, and that's not a bad thing at all (I loved the trailers). It's a FUN movie. There's no other way to put it. It doesn't take itself too seriously and I loved every minute of it. I could've watched these characters for another six hours. In fact, that would probably be my only big complaint - I wish the movie weren't so short.
I can't wait to see it again. P.S. Emma Stone, if you're in the market for a big nerd who draws Star Wars comics, please contact me, because I AM IN LOVE WITH YOU. Seriously.